Spark-plug pump.



F. C. H. STRASBURGER.

SPAR'KPLUG PUMP. l APPLICATION FILED FEB. l2, i915.

vPatented May 18 rl... i:

, sembled to produce the tively lowcost.

.i ,sizes and dierent engines haye spark'plug ...openings to accommodates'park plugs of a rmx c. n. srnasnunena, orinrox, mma.

' sem-PLUG Puur.'

summation: Leiten raient:

mamita med emuyia, isis. summe. miv.

To alllwlwmt may concern:

. vBe it known that LFm-Nn C. H. S'raAs-A Bonomi, a citizenV of: the United States, residing atKnoX, in-the county of Starkeand .State oflndiana, have invented certain new and Impro i psofvrhehtlie following isa specii rRhin-,invention relates ingenera'l to pneu-` matie pumps-.and more particularly to a pump which isadapted toreplace'the spark plug in one cylinderl of. aamulti-cylinder internal. combustion engine and to be utilized to supply air tothe pneumatic tiresof a vehicle.

It is the princi al `object of my presentinventionto provi ea spark plugpump which may permanently replacey the usual spark`v plug and which may, at will, be utilized either as a spark plug or as a pump, the change being eiected by a simple movement.

It: is a: further object of my invention to provide a sparkplug: pump which will function asa spark plug or as a pump, as' desired, and in'which the parts notin use will in no way interfere with the'proper. functioning o f the parts in use. p

A- still further object of my invention is to provide a spark plug pump comprising a minimum number of simple and relatively inexpensive parts which may be readily asdevice. at a compa-ra- Y Other objects and advantages of my in. vention are apparenty as itis betterQunderstood .by reference to the following specification when read in connectionwith' the accompanyingdrawing in whichtionof view being normal to that of Fig. 1; Fig. 3ds an elevation of the sectioned porl tion of Fig; 2, and Fig. 4 is an elevationofl 'the sectioned portion of Fig. 2, the direction "of'view being normal to that of Fig. 3.

Refmin to the drawings, i indicates-ele cylinder o? an internal combustion engine havingl .the usual threaded opening 2 in which the sparl'r plug (not shown) is nor. v'mally disposed. A coupling 3 isthreaded A intothe openin'g2 and-supports the device whichforms the subject-matter of my present invention. It is to be understood that sparkplugs are made in several standard vements in vSpark Plug l,ment of a particular size. providing an interchangeable couplinggB 1 am enabled-to adapt my device for usewith-internal combustion ferent sizes.

engines spark plug openings of dif- Pat'ented'May 18,1915. l I

Threadedly mounted on the coupling 3 is a casing. comprising a lower portion 4 which is. preferably a malleablecasting and an up-v per portion lwhich is-preferably of drawn metal, the twoportions being secured to getlier byl fa coupling ring 6 threadedly mounted on theA portion 4 andi'having `a :dange 7 to engage the flange -8- of the portion 5. The lower part` of the vcasing 4 is provided-with atapered opening 9 in which the lvalve plug 10 is'rotatably mounted, the plug heiligA held in position by a nut. 11 on' a threaded extension 12 thereof, which in turn engages a 'spring 13 bearing against the washer 14, the edges of which .bear on. the` face ofthe casing about the opening 9. The plugjlO is provided with an extension l5 at its opposite end and a suitable operating handle4 16 is mounted thereon, whereby the plug may be turned about its axis, the movement being limited, however, by the engagepin 17 mounted in the plug 10 with the shoulders 18j and 19 on the casing.

The valve plug 10 is of skeleton form, providing with the sides of the opening 9, avchamber\20 within which-an electric terminal 21 is suitably mounted and -adapted to be disposed vin sparking relation with the terminal "22 of aspark lug 253, mounted in an extension 24 of t e casing, when the plug 10 is atzoiie extremity of its rotative movement. It is to be. understood that the chamber 20 isalways-in communication with Figure 1 -s a vertical-section thoughthe device; Fig. 2. is a vertical elevation. thereof with the lower portion in section, the directhe interior of the engine cylinder 1.

Apuppet valve 25, having a head 26 co- 26 beinjliiiormally seated'by a spring 28',

surroun g the stein- 25 between the nut 29 on the end of the stein and an abutment 30 within .the'extension 15. A duct y31 is provided in'the valve plug 15 behind the head 26 of thepuppet" valve 4-which, when the valve is turned to the position indicated in Figs. 3v and 4 of the drawing, registers with the cut-away portion 32 of the casing to a1- low` air to be drawn past the head 26 of the puppet valve into the chamber 20 and thence into the-interior of the engine-cylin der 1. When the valve plug 10 is moved ato the other extremity of its rotative movement insulating insert 33 is mounted in the valve plug 10 in position to Ibe disposed opposite the terminal 22`when the valve plug 10 is turned to allow outside air to pass into the chamber 20 through the inlet 27.

A plate 34 is disposed between the end of the lower portion 4 of the casing andA the flange 8 of the upper portion 5 thereof and is adapted to divide the casing into two `sections, the lower of which forms one ofthe pump cylinders, A flange 35 on the plate 34 supports a cylinder 36 threaded thereto and having a head 37 threaded to the upper end thereof, forming the second pump cylinder. The head 37 is provided with openings 38 through which air may escape therefrom to an oil-.collecting and air chamber formed by the portion 5 of the casing, the openings 38 being normally closed by a valve comprising a leather washer 39 and a metal washer 40 which are 'normally held in close relation with the head 37 by a spring 41, disposed between the washer 40 and a cotter pin 42, which passes through an extension 43 of'the head 37.

Between the lower end of the cylinder 36 and the plate 34 a stuing box comprising a pair of metal washers 44 and a pair of leather washers 45 is disposed and adapted to form an air-tight opening through which the hollnw plunger rod 46 may slide.

Y Upon the lower end of the plunger rod 46 a head 47 is threadedly mounted and provided with a packing ring 48 to coperate with the walls of the cylinder. A member 49 is threaded on the plunger rod 46 below the head 47, a leather washer 50 being disposed therebetween, and is provided with a reduced portion 51, forming a cage for the ball valve 52, and which also serves to prevent knocking as the plunger reciprocates by trapping air between the member 49 and the lower end wall of thecylinder. Openings 534 near the upper extremity .of the cylinder allow free ingress and egress of air to and from the cylinder above the head 47 as it reciprocates. vThe openings 53 are, however, spaced from the plate 34 so that air is trapped between the head 47 and the plate`34 near the end of the upward stroke to prevent knocking. Thel rod 46 has a duct 54 extending from the lower end nearly to `its upper extremity where the openings 55 are provided to allow air to pass into the upper cylinder. The lower end of the rod 45 is notched at 56 to allow air to pass around the ball52 and upward through the rod 46 into the upper cylinder. A head 56 is threadedly mounted at the upper end. of

Vneath the washer 58.

mager? the rod 46 within the upper cylinder, a

head 56`and held in place by the washer `58, the diameter of the head and washer 58 being slightly less than the diameter of the cylinder so that as the head 56 moves downwardly the air trapped beneath it, which is prevented from returning by the ball valve 52,. will be forced around the washers 58 and 57 and the head'56 into the upper cylinder 36 above the head 56'where it will be compressed and driven into the air chamber upon the succeeding upward movement of the plunger. The air chamber is provided with an outlet 59-which may be connected by meansezof suitable ll10S5 (not Shown) with scription ofthe structure thereof. rlhe device isl permanentlymounted in the cylinder head of the engine and normally the valve plug 10 is disposed in the position indicated in Figs. 1 and 2 in which position the inlet for outside air and the outlet to the pump cylinders are closed and the terminals 21 and 22 are in sparking relation. In this position gas is regularly drawn into the cylinder from the carburetor and fired by the spark passing between the terminals 21 and 22.

When it is desired to supply air to tires the outlet 59 in the air chamber is connected by means of suitable hose to the tire and the valve plug 10 is turned by vmeans of the der upon the downward stroke, and forcing this air upwardly through the outlet of the chamber 20 beneath the member 49 and past the ball valve 52 through the y.duct 54 -in the rod 46 and into the upper cylinder 36 be- The pressure will causethe rod 46 to move upwardly carrying the head 56 in the upper cylinder 36, compressing the air contained therein and forcing it into the air chamber and thence into the tire. Upon the succeeding downward movement of theV engine piston the suction will cause the rod 46 to move downwardly while they engine cylinder will be again filled with air entering 'through the duct 31 and thepuppet valve 25.. The air in the upper cylinder beneath the washer ,130

.58 is prevented from returning by the ball valve 52 which immediately seats when the suction begins and the air will accordingly be forced around the Washers 58 and 57 and head 56 into the cylinder 36 above the head 56 ready for the succeeding compression. When the pressure in the tires is satisfactory, as indicated b the gage 60, the valve glug -10 is returne to'its normal position y means of the operating` handle 16 and the cylinder 1 will immediately resume its normal function.

It will be readily understood thatI have devised a simple and eicient spark plug pump which may be permanently attached in position upon the end of the cylinder in i said inlet, and a place ofthe usual spark plug andwhich will perform the usual functions of the spark p1ug,' the pump in no way interfering with the normal operation of the engine but being always ready. for instant operation when required with a minimum amount of ma'- nipulation. 1 y p t f It will be apparent that various changes may be made 1n the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacriiicing any of its material advantages, the form hereinbefore disclosed being merely on; plreferred embodiment thereof. g

c a1m:

1. In e device ef che character described,

the combination.` of a chamber, having an f outlet and an inlet, a movable closure for said outlet, and a pair o f electric terminals within said chamber, one of said terminals being movable into sparking'grelation with the other simultaneously with thev closure of said outlet. l

.2., In a device ofthe character described,

the-'combination o'a chamber, having 4an outlet and an inle a movable closure for piair of 4electric terminals within said chamber, one of said terminals being movable into vsparkint-relation with the other simultaneously wi the closure lofv saidinlet. e l' aelneldevi'eecf Vthe character described,

thecombination of a chamber having an outlet and an inlet, a movable closure for said outlet and inlet, and a aircof electric terminals within said cham r, one `of said terminals movable into ugaming-relation y with the clos sure of said outlet .and inlet.l v A 5 4'. In a device of lthe character described,

. the'1combinationof a chamber,`

outlt and an inlet, a movable closure .for said 4outlet-@a stationary. electric terminal within said chamber, andmanelectricteri minalsecured tol said movable closure andj ada ted to be disposed in sparkin relation-v wit said stationary terminal w outlet and inlet are closed.

5. 1n a device of the character described,

en said i movedinto sparking the combination of a chamber, .having an outlet and aninlet, a movable closure forv said inlet, a stationary electric terminal within said chamber, and an electric .terminal secured to said movable closure and adapted to be disposed in sparking relation with said stationary terminal when said inlet is closed.

6. In a device of the character described, l

the combination of a chamber having an outlet and an inl/etL a movable-closure for said outlet .and inlet, a s tationar electric terminal within said chamber, an an electric terminal secured to said movable closure and adapted to be disposed in sparking re` lation 'with said stationary terminal when said outlet and inlet are closed. 7. In a device of the character described,

the ycombination of a chamber having an outlet andan inlet, a movable closure for said outlet and inlet, a checkvalve in said inlet, an electric terminal secured to said movable closure and adapted to be disposed Iand simultaneously dispose said terminals in sparking relation. 9. .-Ina device. of the vcharacter described,

the combination of a chamber having an outf let and an inlet, a checkvalve in said inlet,

an electric termmal chamber, ro-

Atatablemeans to close said-outlet andi'nlet,

andanfelectric-terminal secured to said Vrotatable means and adapted to be moved into l10; In-a device of thecharcter described, thecombination of a ha anoutlet an inlet, an electric termina within outlet and inlet, an electric terminal secured .to said rotatable. means-1nd c t`0 .be

releticn'waaeeiaarct mentioned termina, when said outlet and inletare closed, and out of spar therewith ,when said outlet" and lnlet are open, and an insulating member carried by relation withl -saidr first-mentioned* outlet and are saidgcliamber, rotatable. meansto close said I l' e saidfrotatablejmeans and adapted to be dis-v posed contiguous to sald first-mentioned terminalwhen said outlet and inlet are open.

' l1. Ina device of the character described,

the combination of a chamber having an outlet and :an inlet, a movable closure therefor,

a stationary electric terminal vwithin said.l chamber, an'electric terminal secured-'to said vmovable closure and'adap'ted to be disposed in sparking relation vvith said stationary ter- Vminal when said outlet and inlet are closed and out of sparking relation therewith when said outlet and inlet are open, and means for securing said chamber in communicative relation with the interior of an engine cylinder.

12. In a device of the character described, 4the `combination of a chamber having an outletand an inlet, a movable^closure forl said outlet and inlet, a check valve in said inlet, a stationary electric terminal within said chamber, an electric terminal secured to said-movable closure and adapted to be disposed out of sparking relation with said. stationary-terminal when said outlet andI inlet are open, air-compressing :means connected to said outlet, and meansfor securing said chamber in communicative relation with the interior of an engine cylinder.

13. In a device of the character described, the combination of fa chamber having an outlet and an inlet, a omovable closure for said outlet and inlet, a check valve in said inlet, a pair of electric terminals Within said v chamber, one of said terminals being mov- Hable out of sparking relation With the other simultaneously with the movement of said closure to open said outlet and inlet, a pair of cylinders," plungers in said cylinders, means for conveying air from said outlet to l lsaid cylinders, means to prevent the return` the vcombination of a chamber having an4 cylinder. Y

outlet and an inlet, a movable closure forl said outlet and.. inlet, a check valve in said inlet, a pair of electric terminals Within said` chamber, one of said terminals being movable out. of sparking relation with the other simultalouslywith the movement of said closure to open said outlet and inlet, a pair of cylinders, plungers in said cylinders, means for conveying air from said outlet to said cylinders, meansvto prevent the return lof air from-one-of said cylinders, means at either end of one of said cylinders to cushion the plungers therein andmeans for securing said vfirst-mentioned chamber in communicative relation with the interior of an engine 15. ln a device of the character described, l the combination of a chamber having an outlet andJan inle a movable closure lfor said outlet and inlet, a check valvein said inlet, aA pa'ir of electric terminals-'Within said/l maaar? chamber, one of said terminals being movable out of sparking relation with the other simultaneously with the movement of said closure to open said outlet and inlet, -a pair 'of cylinders, plungers in said cylinders,

means forconveying air from said outlet to said cylinders, means to prevent the return of air from one of said cylinders, an oil-col- 16. vIn Aa device of the character described,

the combination of a casing comprising separable sections and coupling means for holding said sections in coperative relation, a chamberin lone ofsaid sections having an outlet and an inlet, a movable closure for sai-d outlet and inlet, a -pair of electric terminals Within said chamber, one of Said ter- .minals being movable out of sparking relation With the other simultaneously with the movement of said closure to opensaid outlet and inlet, air compressing means Within said casing and connected to said outlet, and means for securing said casing to an engine cylinder with saidchamber in communicative relation with the interior of jsaid cylinder. Y

17. In a device of the character described, the combination of a chamber having an outlet and an inlet, a single movable closure for said outlet and inlet, a check valve in said inlet, a pair of electric terminals, a pair of cylinders, plungers in said cylinders,

lmeans for conveying air from said outlet to said. cylinders, means to prevent the return of air from one of said cylinders,.and means communicative relation with the interior of an engine cylinder.

18. ln a device of the character described, the combination of a chamber having an outlet and an inlet, a single movable closure for said outlet and inlet, a check valve in for securing said first-mentioned chamber in said inlet, a pair of electric terminals, a pair of cylinders, plunger's in said cylinders, means for conveying air from said outlet to said cylinders, means toprevent the return of -air from one of said cylinders, means at either end of one of said cylinders to cushion the plungers thcrein, and means for securing said rst-mentioned chamber in communicative relation-'With the interior of an engine cylinder. A

, FRNKC. H. STRASBURGER. lllitnessesv:v y

ERNEST Hl.' MERCHANT, M. A. mn. 

